Roofing composition.



I. B. WISE.

ROOFING COMPOSITION.

APPLICATION man FEB.3,1913. RENEwEn FEB. I. 19H.

@13M MM50/Wm.

Patented J uly 3l, '1917.

A Lacasse.

M .recon n. WISE, or CLEVELAND, omo.

ROOFING COMPOSITION.

Specification of Letters Patent.

Patented July e1, 1917.

Application led February 3, 1913, Serial No. 745,825. Renewed February 1, 191'?. Serial No. 146,000.

' To all whom t may concern:

Be it known that I, JACOB B. WISE, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented a new'and useful Improvement in Roofing Compositions, of whichthe following is a specication, the

principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions. v

The present invention, relating as indicated to an improved roofing composition, has more particular regard to the improvement of the bituminous compositions which are largely used for the purpose in question, being applied both to the laid roof, or to sheets of paper which are to be subsequently placed on-the roof. The obiect of the invention is to provide a composition which may be manufactured/at a much lower cost than the one at present in use, while it at the same time will give equally, if not more, satisfactory results. To the accomplishment of these and related ends, theinvention consists of the ingredients hereinafter fully described ing calked or otherwise composition may be applied to ordinary tar and particularly pointed out in the claims Such following description, together withv the annexed drawing set lforth in detailone approved mode of can'yingout my invention, suchidisclosed mode, however, constitutmg but one of various ways inv which the principle of the invention may be used. i

In said annexed drawing:-

Figure l shows a vertical section through a portion of a roof laid with my present improved-composition; andFig. 2 represents a horizontal section taken on an enlarged scale through the same on the plane indicated by the line 2-2, Fig. 1.

My present improved composition is in effect a liquid coating composition' of paste or semi-paste-like consistency, beingv designed for application to any smooth rooting surface, such for example as would be provided by the ordinary boards or sheeting which forms the foundation of most roofs, the 'cracks or spaces between the boards beclosed. Or the said paper, metal,` or composition roofings which .mayv have worn out, and in fact the latter will a'ord a very large field for the use of the present composition. Thev latter is thus` distinguished from" composition rooiings as at present hewn, consisting of sheets of a tar or equivalent bituminous base mixed with wool-felt or like fibrous material; as also from ordinary tar which has occasionally been used as a coating material for` such composition or felt roongs. As compared with either such composition roofing or tar coating, the present composition will be materially cheaper, permitting of the use of 2. much heavier coating at the same,or a lower, cost, than if any of such present composition is used.

A liquid coating composition has a num- I ber of advantages in contra-distinction to a Acomposition that 'comes in the form of a` sheet, since in laying it, joints or seams are Aentirely avoided, and there is no occasion to perforate the layer with nails or like fastening devices as is necessary in attaching sheet roofing to the foundation or support .forming the roof proper.

In carrying out the present invention I employ a mixture of asphalt or tar and pme oil, or other equivalent bituminous -compound, with or without asbestos admixed, addingthereto a quantity of fine, flat fragments `of hard material such as crushed oyster or clam shell, this material being thoroughly mixed with the other ingredients so as to be evenly distributed throughout the mass.. The fragments of shell, even where relatively finely' ground, will retain thelr Hat cliaiacter,I that is, they will quite thin in one dimension, as will be readlly understood.

My improved composition isispread upon the roof, or the strips of materlal to be subsequently laid on a roof, while 1n the liquid or plastic condition referred to. The spreadlng operation may be conveniently performed by means of a trowel or brush, the com-position being painted or brushed over thesurface involving a forcing of acertam amount of the coating along the ysurface when applied too thickly in any one spot.. Bv reason of the thin, flat character of the shellsv in vmy composition, it maybe thus spread without rolling or dragging the same along the surface as is the case where stones of round vcharacter are used.

Accordingly, pared is spread on the roof, whether an old roof such as has-been previously referred to or a new one, these particles of material will lie H at and occupy no more, and really less, vertical space than the layer of tar, or equivalent compound replaced thereby Ain when the mixture thus .pre-

i' shin/vn9 the roong composition "losing thecomposition. The spese lille-ii, however such fragments or" shell correspondingly climinishes the amount ci the other ineteri ls require@ to covers given eres, their iifitnesss such iregroente however? not detract in the slightest the con tinuity of the cost et the seme time `they permanently retain e l-lm oi" the or es pheit even on their upper feces so that it is in enigect e continuous sheet oi3 ter., es heirore5 that is place@ on the root1 hiereover eect of eclmining this fragmentary meteriei is to decrease the tendency oi the resulting composition to run when exposeii relatively high temperature, as uncler e hot sun.

The amount of shell which may he usecl is partly s metter ci selection, it having heen found? that as high es ty per cent. of the composition may consist thereof. @bviously, the shell being much cheaper then the other ingredients, even ter, it is possible by use of the seme to very materially decrease the oost of the composition, While hy actuel experiment it isfound that the letter gives more satisfactory results 'than if the :mixture consisted simply of the ter anni pine oil, osphalt, orother compositions heretofore used.

rlhe general constructionencl application' of my `roofing; composition will be readily seen from Figs. l and 2 teken in connection with the foregoing explenetionr ln Fig. l l show 'the blocks orboerzis l which comprise the roof proper. upon which there will loe plecerl e; costing or -the lcomposition already described, either directly or vith the intervention of e-leyer or peper es pre-c. viously. explained, such composition.v consist-- ing ofebituminous substance 21in ,v7hich' there is'helcl e,l quantity of'et .pieoes oi some such materiel es shells;sietes orfequiv-s elent materiel 'lhus, in ig." l.- it* 'will he note that severel loyers' cil peper il I Lnishing e roorn constructed with my composition3 s layer the my he siitefl or sprinkled; over the sur- Crusher-l` shell thoroughly mixed with such,

bese ancl' evenly distributed lthroughout the mass, the longest dimension of the majority of the pieces of shell 1losing greater thenthe thickness of the usuel coating of the composition when applied to e roei.

, 2. A roofing composition including e bese made up of ter and pine oil forming en initially plastic compound, and a, quantity of ine, et fragments of crushed shell thoroughly mixed with such base end evenly `distrihute i throughout the mass, such composition oeingj capable of being spread' evenly and continuously over e-surfece, en

such fragments assuming e position in which 'their a't sides are substantially parallel to the suri'ece toVY which such composition is epplietia l Y 19Q ?iggnad by mevthis 31st dey of January9 

